Overburden (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Overburden" in English language version.

refsWebsite

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1books.google.com

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books.google.com (Global: 3^rd place; English: 3^rd place)

Kogel, Jessica Elzea (editor) (2006) Industrial minerals & rocks: commodities, markets, and uses (7th edition) Society for Mining, Metallurgy, and Exploration (U.S.), Littleton, Colorado, page 379, ISBN 0-87335-233-5

worldcat.org (Global: 5^th place; English: 5^th place)

United States Bureau of Mines (1980) Selective Interburden Handling Techniques National Technical Information Service, Springfield, Virginia, OCLC 42983831